Mental health courts exist because the system has failed. If these people were being treated, they wouldn't end up with misdemeanor charges or felony charges against them in the first place. The very existence of mental health courts is really an indication of the system's failure.
The very term ['mental disease'] is nonsensical, a semantic mistake. The two words cannot go together except metaphorically; you can no more have a mental 'disease' than you can have a purple idea or a wise space". Similarly, there can no more be a "mental illness" than there can be a "moral illness." The words "mental" and "illness" do not go together logically. Mental "illness" does not exist, and neither does mental "health." These terms indicate only approval or disapproval of some aspect of a person's mentality (thinking, emotions, or behavior).
Over the years it [the National Committee for Mental Hygiene] has championed for the promotion of 'mental health' despite the fact that nobody knows what it is or how to do it.